Features: The Magic Water Drawing Book helps kids to recognize colors and animals, kids will learn much knowledge from drawing. Once you color, the pictures are very vivid and colorful. As soon as they dry the colored areas disappear and the pages can be colored again and again. There is no chance of getting "marks" on clothing or other surfaces since all that is required is clear water. And, it is non-toxic. Simple to use, you only need to fill the pen with water, then you can start coloring.